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Cheap flights from Philadelphia to Saint Croix from $245

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Saint Croix departing on 1/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Philadelphia to Saint Croix

Cheap round-trip flights

Enter your travel dates to find the best prices.
Spirit Airlines Logo
8:20 am - 3:43 pm
PHL
-
STX
6h 23m1 stop
Spirit Airlines Logo
4:38 pm - 11:50 pm
STX
-
PHL
8h 12m1 stop
$245Spirit Airlines
Sat, Jan 17 - Sat, Jan 24
Spirit Airlines Logo
6:00 am - 3:43 pm
PHL
-
STX
8h 43m1 stop
Spirit Airlines Logo
4:38 pm - 11:19 am
STX
-
PHL
19h 41m1 stop
$248Spirit Airlines
Sat, Feb 7 - Mon, Feb 9
Multiple Airlines Logo
6:00 am - 3:43 pm
PHL
-
STX
8h 43m1 stop
Multiple Airlines Logo
4:38 pm - 2:39 pm
STX
-
PHL
23h 01m2 stops
$280Multiple Airlines
Sat, Feb 7 - Mon, Feb 9
American Airlines Logo
5:00 am - 2:16 pm
PHL
-
STX
8h 16m1 stop
American Airlines Logo
3:06 pm - 11:59 pm
STX
-
PHL
9h 53m1 stop
$305American Airlines
Thu, Feb 19 - Thu, Feb 26
American Airlines Logo
9:30 pm - 3:43 pm
PHL
-
STX
17h 13m1 stop
American Airlines Logo
5:42 pm - 7:39 am
STX
-
PHL
14h 57m2 stops
$309American Airlines
Thu, Feb 19 - Thu, Feb 26
Spirit Airlines Logo
8:12 pm - 3:40 pm
PHL
-
STX
18h 28m2 stops
Spirit Airlines Logo
4:37 pm - 8:44 am
STX
-
PHL
17h 07m1 stop
$312Spirit Airlines
Thu, Feb 26 - Mon, Mar 2
JetBlue Logo
12:00 pm - 4:27 pm
PHL
-
STX
28h 27m1 stop
JetBlue Logo
5:25 pm - 11:05 am
STX
-
PHL
17h 40m1 stop
$313JetBlue
Tue, Apr 7 - Wed, Apr 15
Multiple Airlines Logo
6:00 am - 3:43 pm
PHL
-
STX
8h 43m1 stop
Multiple Airlines Logo
3:51 pm - 11:09 pm
STX
-
PHL
32h 18m2 stops
$321Multiple Airlines
Fri, Jan 9 - Tue, Jan 13
Spirit Airlines Logo
6:15 am - 2:40 pm
PHL
-
STX
8h 25m1 stop
Spirit Airlines Logo
3:37 pm - 11:59 pm
STX
-
PHL
8h 22m1 stop
$323Spirit Airlines
Fri, Apr 24 - Fri, May 1
American Airlines Logo
5:00 am - 9:31 pm
PHL
-
STX
15h 31m1 stop
American Airlines Logo
6:09 pm - 9:25 am
STX
-
PHL
16h 16m1 stop
$345American Airlines
Fri, Jan 9 - Tue, Jan 13

American Airlines flights from Philadelphia to Saint Croix

Our best American Airlines deals on Philadelphia to Saint Croix flight tickets
American Airlines
Feb 19
PHL5:00 amPhiladelphia
8h 16m
1 stop
STX2:16 pmChristiansted Henry Rohlsen
Feb 26
STX3:06 pmChristiansted Henry Rohlsen
9h 53m
1 stop
PHL11:59 pmPhiladelphia
$305
Find similar
American Airlines
Feb 19
PHL9:30 pmPhiladelphia
17h 13m
1 stop
STX3:43 pmChristiansted Henry Rohlsen
Feb 26
STX5:42 pmChristiansted Henry Rohlsen
14h 57m
2 stops
PHL7:39 amPhiladelphia
$309
Find similar
American Airlines
Jan 9
PHL5:00 amPhiladelphia
15h 31m
1 stop
STX9:31 pmChristiansted Henry Rohlsen
Jan 13
STX6:09 pmChristiansted Henry Rohlsen
16h 16m
1 stop
PHL9:25 amPhiladelphia
$345
Find similar

JetBlue flights from Philadelphia to Saint Croix

Our best JetBlue deals on Philadelphia to Saint Croix flight tickets
JetBlue
Apr 7
PHL12:00 pmPhiladelphia
28h 27m
1 stop
STX4:27 pmChristiansted Henry Rohlsen
Apr 15
STX5:25 pmChristiansted Henry Rohlsen
17h 40m
1 stop
PHL11:05 amPhiladelphia
$313
Find similar
JetBlue
Apr 7
PHL7:00 amPhiladelphia
9h 27m
2 stops
STX4:27 pmChristiansted Henry Rohlsen
Apr 15
STX5:25 pmChristiansted Henry Rohlsen
14h 08m
2 stops
PHL7:33 amPhiladelphia
$471
Find similar
JetBlue
Apr 24
PHL8:20 amPhiladelphia
8h 10m
2 stops
STX4:30 pmChristiansted Henry Rohlsen
Apr 30
STX3:58 pmChristiansted Henry Rohlsen
17h 15m
2 stops
PHL9:13 amPhiladelphia
$475
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to Saint Croix that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 23, 2025.
Use the filters below to find and compare flights from Philadelphia to Saint Croix that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Sat 1/17

8:20 am-3:43 pm

1 stop6h 23m

Christiansted Henry Rohlsen

Sat 1/24

4:38 pm-11:50 pm

1 stop8h 12m

$245

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Sat 2/7

6:00 am-3:43 pm

1 stop8h 43m

Christiansted Henry Rohlsen

Mon 2/9

4:38 pm-11:19 am

1 stop19h 41m

$248

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Sat 2/7

6:00 am-3:43 pm

1 stop8h 43m

Christiansted Henry Rohlsen

Mon 2/9

4:38 pm-2:39 pm

2 stops23h 01m

$280

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Thu 2/19

5:00 am-2:16 pm

1 stop8h 16m

Christiansted Henry Rohlsen

Thu 2/26

3:06 pm-11:59 pm

1 stop9h 53m

$305

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Thu 2/19

9:30 pm-3:43 pm

1 stop17h 13m

Christiansted Henry Rohlsen

Thu 2/26

5:42 pm-7:39 am

2 stops14h 57m

$309

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Thu 2/26

8:12 pm-3:40 pm

2 stops18h 28m

Christiansted Henry Rohlsen

Mon 3/2

4:37 pm-8:44 am

1 stop17h 07m

$312

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Tue 4/7

12:00 pm-4:27 pm

1 stop28h 27m

Christiansted Henry Rohlsen

Wed 4/15

5:25 pm-11:05 am

1 stop17h 40m

$313

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Fri 1/9

6:00 am-3:43 pm

1 stop8h 43m

Christiansted Henry Rohlsen

Tue 1/13

3:51 pm-11:09 pm

2 stops32h 18m

$321

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Fri 4/24

6:15 am-2:40 pm

1 stop8h 25m

Christiansted Henry Rohlsen

Fri 5/1

3:37 pm-11:59 pm

1 stop8h 22m

$323

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Fri 1/9

5:00 am-9:31 pm

1 stop15h 31m

Christiansted Henry Rohlsen

Tue 1/13

6:09 pm-9:25 am

1 stop16h 16m

$345

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Saint Croix from

How to get the cheapest flight ticket from Philadelphia to Saint Croix

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to Saint Croix?

American Airlines, JetBlue and Delta are the top three most popular airlines that fly to Saint Croix from Philadelphia according to our data. American Airlines is the first choice among our users, with 60% of people opting to fly with this airline when traveling to Saint Croix. Keep in mind that there are 5 different airlines that fly to Saint Croix on a routine basis, so you have a few additional options to choose from.

Cheap Philadelphia to Saint Croix flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Saint Croix

Fastest flight time

6h 23m

Direct flights

None
The fastest flight from Philadelphia to Saint Croix takes 6h 23m
There are no direct flights from Philadelphia to Saint Croix. There are no popular flight routes from Philadelphia to Saint Croix.
Search flight deals

  • When did momondo last update prices for flights from Philadelphia Airport to Saint Croix?

    Prices for flights from Philadelphia Airport to Saint Croix are refreshed on a daily basis.

  • How many operators does momondo search for flights from Philadelphia Airport to Saint Croix?

  • How old do you have to be to fly from Philadelphia Airport to Saint Croix?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Philadelphia Airport to Saint Croix.

  • What documentation or ID do you need to fly to Saint Croix?

    The travel and health documents you'll need for your trip to Saint Croix may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Saint Croix. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Philadelphia to Saint Croix

Compare and see reviews for airlines that fly from Philadelphia to Saint Croix with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $108Free CancellationRating
5.8
3,076 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $231Free CancellationRating
6.3
8,193 reviews
Search Spirit Airlines flights
DeltaPriceFrom $299Free CancellationRating
7.9
8,014 reviews
Search Delta flights
American AirlinesPriceFrom $397Free CancellationRating
7.2
11,053 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Saint Croix?

Finding the right flight to Saint Croix from Philadelphia is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Saint Croix quick and easy, saving you time and money.

Can I find flights from Philadelphia to Saint Croix with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Saint Croix from Philadelphia with this policy.

How can momondo help me find flights from Philadelphia to Saint Croix?

Once you have performed a search for Philadelphia to Saint Croix flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Philadelphia to Saint Croix right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Philadelphia to Saint Croix flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Saint Croix trip

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